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Windows 7: Unable to install SP1, error 800F0818

Since a couple of days, after I reinstalled my windows, I have been experiencing problems with installing the Windows 7 Service Pack 1 (KB976932). Whenever I try to install it I get the following error code: 800F0818.

When I search this error code in the help function of microsoft I get absolutely nothing, the error code doesn't seem to exist in their database, although they made it. When I search this forum I only get custom made solutions and read advices not to use them.

I read in another article that the CheckSUR.persist.log might be useful so I uploaded it in this article.

But....
However, the same reference table for Windows 7 (all editions) has the following under "Removal Information" -WUSA.exe does not support uninstall of updates. To uninstall an update installed by WUSA, click Control Panel, and then click System and Security. Under Windows Update, click View installed updates and select from the list of updates.

By trying to uninstall the update in elevated dos using wusa /uninstall /kb:2633879 I get the error code: 0x800F0818.

Kaktussoft I then tried your other solution. First I used the elevated dos commands to get ownership of the files/folder. I then replaced my package files by the files you gave me. Restarted my pc. Then tried to install SP1, but got the same errorcode: 0x800F0818.

By trying to uninstall the update in elevated dos using wusa /uninstall /kb:2633879 I get the error code: 0x800F0818.

Kaktussoft I then tried your other solution. First I used the elevated dos commands to get ownership of the files/folder. I then replaced my package files by the files you gave me. Restarted my pc. Then tried to install SP1, but got the same errorcode: 0x800F0818.

Unable to install SP1, error 800F0818

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